1983 BMW 628 vs. 1972 Citroen SM
To start off, 1983 BMW 628 is newer by 11 year(s). Which means there will be less support and parts availability for 1972 Citroen SM. In addition, the cost of maintenance, including insurance, on 1972 Citroen SM would be higher. At 2,788 cc (6 cylinders), 1983 BMW 628 is equipped with a bigger engine. In terms of performance, 1983 BMW 628 (181 HP @ 6000 RPM) has 8 more horse power than 1972 Citroen SM. (173 HP @ 5500 RPM). In normal driving conditions, 1983 BMW 628 should accelerate faster than 1972 Citroen SM. With that said, vehicle weight also plays an important factor in acceleration. 1983 BMW 628 weights approximately 20 kg more than 1972 Citroen SM. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1983 BMW 628 is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 1983 BMW 628. However, in wet, icy, snow, or gravel driving conditions, 1972 Citroen SM, being front wheel drive (FWD), will offer much better control with better grip. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 1983 BMW 628 (241 Nm @ 4000 RPM) has 4 more torque (in Nm) than 1972 Citroen SM. (237 Nm @ 4000 RPM). This means 1983 BMW 628 will have an easier job in driving up hills or pulling heavy equipment than 1972 Citroen SM.
Compare all specifications:
| 1983 BMW 628 | 1972 Citroen SM | |
| Make | BMW | Citroen |
| Model | 628 | SM |
| Year Released | 1983 | 1972 |
| Body Type | Coupe | Coupe |
| Engine Position | Front | Front |
| Engine Size | 2788 cc | 2669 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 181 HP | 173 HP |
| Engine RPM | 6000 RPM | 5500 RPM |
| Torque | 241 Nm | 237 Nm |
| Torque RPM | 4000 RPM | 4000 RPM |
| Engine Bore Size | 86 mm | 87 mm |
| Engine Stroke Size | 80 mm | 75 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Front |
| Number of Seats | 4 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1470 kg | 1450 kg |
| Vehicle Length | 4760 mm | 4900 mm |
| Vehicle Width | 1730 mm | 1850 mm |
| Vehicle Height | 1370 mm | 1330 mm |
| Wheelbase Size | 2640 mm | 2960 mm |
| Fuel Tank Capacity | 70 L | 25 L |
